Franklin h



(ModeL) F. H. CHILTON.

EMBROIDERING ATTAGHMENT FOR SEWING MACHINES.

No. 250,709. 1 Patented Dec. 13,1881.

UNITE rarns ATn'r rarest-O FRANKLIN H. CHILTON, OF NEW YORK, N. Y.,ASSIGNOR TO EMPRESS EMBROIDERER OOMPANY,'OF SAME PLACE.

EMBROIDERING ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 250,709, dated December13, 1881.

Application filed November 26, 1880.

To all whom it may concern Be it known that I, FRANKLIN H. CHILTON, ofNew York, in the county of New York and State of New York, have inventeda new anduseful Improvement in Einbroidering Attachments forSewing-Machines, of which the following is a specification, referencebeing bad to the accompanying drawings.

The invention relates to an improvement in einbroidering atlachments forsewing inachines; and it consists in the construction and arrangement ofdevices hereinafter described, and particularly pointed out in theclaim.

The object of the invention is to produce a simplified form ofembroiderer which can be sold at a minimum price, and which may beeasily understood and used by the unskilled operator. Another very greatadvantage that my embroiderer possesses is that its operating parts maybe constructed quite small and pivoted in close relation to the verticalline of center of the sewing-needle, whereby the thread is preventedfrom vibrating to any great extent, and as a consequence no difficultyis experienced in using any kind of silk. By arranging the parts of myembroiderer in the manner I point out hereinafter the path of thesewing-needle is left unobstructed at all times.

Figure l is a top view of a device embodying the elements of theinvention. Figs. 2 and 3 are views of modifications which will beunderstood from the description hereinafter presented. Figs. at and 5are plan views, illustrating the positions of the embroidering-threadand of the parts of the device shown in Fig. 1 at the extreme of eachmovement. Fig. 6 is an enlarged view of the stitch formed by theattachment sought to be protected hereby.

A indicates the presser-foot of a sewing-machine, upon the right-handside of the upper portion of which is rigidly affixed the arm B, whichextends rearward, and has pivoted in its extremity the rocking angularlever 0, consistingof the vertical arm a and the horizontal arm b, (seeFig. 3,) its bearing being at the juncture of the two arms. v

In the lower end of the vertical arm a is pivoted the rear end of theconnecting-rod D, which extends forward a proper distance, and ispivoted at its front end to the huh (1, form (ModeL) ing a part of theswinging hook E. The hook E is in the form of a half-circle or half ofan ellipse, and is bowed to the right. Its rear end is pivoted upon thelower portion and slightly to the left of the vertical center of thepresser foot A, its front end being free and notched or hooked upon itsvertical edge.

Upon the pivot 6, (see Fig. 1,) which acts as a bearing for the hook E,is mounted, at about its central portion, the swinging bar F, having athread-eyeJ', in its forward end, and having pivoted in its rearextremity one end of the arm h, the other end of the arm It beingpivotally secured upon the connecting-rod D.

In the lower portion of the presser-foot A is an opening, 1', in whichthe needle is moved, and which is of such size that theembroidering-stitch may beseen whileit is being formed.

Upon the front edge of the opening 1', to the right of the vertical lineof the center of the presser-foot, is provided a fixed laying-hub orthrcad-detainer, m.

In the forward end of the angular lever (J is supplied a suitably-formedslot, n, in which the head of the screw securing the needle in theneedle-bar of an ordinary sewing-machine is placed, whereby, when themachine is in motion, the lever O is given a rocking movement on itsbearing by the vertical action of the needle-bar.

In the operation of the attachment above described theembroidering-thread is passed from a tension through the eyef in thevibrating-bar F, and thence through the opening 6 and under thepresser-foot. The needle-bar is then given its first downward stroke,which has the effect of depressing the lever O, by

which the connecting-rod D is drawn toward the rear. This downwardmovement of the rod D causes the hook E to swing to the right and towardthe rear,'and theforward endof the vibrating bar F to move toward thefront and to the left until the embroidering-thread in its eye fis justin front of the notch in the end of the hook E. The succeeding upwardstroke of the needle-bar reverses the movement of the devices abovedescribed, whereby the hook E is caused to swing back to the front andleft, carrying the embroideringthread with it, while the bar F movestoward the rear.

When the devices are in this position the embroidering-thread is in adiagonal line from the eyefover the end of the hook E, thence around thesaid end in the notch and to the left around the right-hand end of thelaying-hub m, whence it passes under the presser-foot. The sewingneedlenow again enters the fabric, passing between the line of thread thatextends from the eye f to the notch in the hook and that which passesfrom the point of the hook around the laying-hub. The depression of thesewingneedle causes the connecting-rod D to be drawn toward the rear, asbefore, and the ends of the oscillating hook E and bar F to move towardeach other, as above described, whereby that portion ofthe thread whichwas looped around the point of the hook is drawn around the stitchformed by the needle. The movement of the hook E and vibrating bar F ispositive, and these parts cannot fail to perform their functions withevery movement of the needlebar. The line of stitches formed is in thecontour of a cycloidal line, and each loop is sewed to the fabric asfast as made.

In Fig. 2 I show another modification of the attachment. In this deviceI employ a fixed laying-hub, m, and move the bar F by the hook E, thepivoted ends of the hook and bar being interlocked in any convenientmanner to permit of the communication of movement from one to the Other.i

The vibrating eye-bar F may receive its motion, if desired, from someother part of the attachment than the hook F. In Fig. 4 is shown amodification wherein the bar F is pit oted to an arm and takes itsmotion from the lever 0.

By the terms right and left, as herein employed, I refer to the rightand left hand sides of the attachment whenlooking at its front end.

I am aware of English Patent No. 4,585 of 1877, and do not wish toembrace in this application anything shown therein. The said patent istherefore disclaimed.

WVhat I claim as my invention, and desire to secure by Letters Patent,is-

An embroiderer for sewing-machines, consisting of the presser-foot A,having a laying device, an, and the hook E, pivoted in near relation tothe vertical line of center of the sewingneedle, and connected at d withthe rod D, which passes rearward and is actuated by the rocking lever Oto have a longitudinal sliding movement, in combination with the eye-barF, adapted to have a simultaneous movement with the hook E and in adifferent direction thereto, and to deliver the embroidering-thread tothe hook, substantially as set forth.

In testimony that I claim the foregoing improvement in embroiderin gattachments for sewing-machines, as above described, I have hereunto setmy hand this 19th day of November, 1880.

FRANKLIN H. CHILTON.

Witnesses:

CHAS. G. GILL, W. B. TURPIN.

